Variations in the concentration of redox sensitive elements combined with pyrite framboid
size data documented from a Marcellus Formation (Middle Devonian) core recovered from …

The degree of anoxia that existed during accumulation of Devonian–Mississippian black
shales in central Kentucky has been debated widely. In this study, geochemical data were …

The upper part of the New Albany Shale is divided into three members. In ascending order,
these are (1) the Morgan Trail Member, a laminated brownish-black shale;(2) the Camp Run …

Abstract Bone Spring (Leonardian) mudrock successions in Delaware Basin vary between
silica-and carbonate-rich facies marking depositional responses to sea-level changes …

The hydrography of the Appalachian Basin in late Devonian–early Mississippian time is
modeled based on the geochemistry of black shales and constrained by others' …

Claystone paleosols with abundant vertic features occur in Upper Ordovician (Ashgillian)
red beds of the Juniata Formation in the southern Appalachians. The Beans Gap Claystone …

Numerous manganese deposits in the Franciscan Complex, California, occur as
conformable lenses within bedded radiolarian chert-argillite sequences that are, in turn …

The trace and minor element and Re–Os geochemistry of the Upper Devonian Woodford
Shale are analyzed in order to characterize elemental abundances, to identify associations …

ABSTRACT The Decorah Formation of eastern Iowa was deposited on an open-marine
subtidal shelf near storm wave base. Maximum transgression is represented in organicrich …

Geochemical, isotopic and petrographic analyses were performed on a 30-m core of the
Marcellus Shale obtained from Greene County, Pennsylvania, to understand the dominant …